fix(github): backfill large pull requests

[f0rr0]

Summary

• replace the capped GraphQL PR-membership fallback with a paginated, immutable base...head comparison
• validate comparison totals, unique progress, terminal head, page progression, and canonical numeric pagination links
• enumerate affiliated PRs in stable creation order while accepting GitHub’s canonical repository pagination path
• correct the historical-backfill documentation and the date-sensitive PostgreSQL fixture

Verification

• live read-only verification recovered 368/368 commits from the PR that failed the Action and 308/308 from a merged oversized PR
• bun test (194 passed)
• bun run lint
• bun run typecheck
• bun run build
• actionlint
• bun run db:generate (no schema drift)

[vercel]

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Project	Deployment	Actions	Updated (UTC)
f0rr0-github-io	Ready	Preview	Aug 30, 2026 12:47pm